5 ms·
I see the appeal here, but I'm surprised a good DSP or mid-volume, old node ASIC isn't the more common solution here. Do these need such specialized processing
by borramakot 9y ago
I see the appeal here, but I'm surprised a good DSP or mid-volume, old node ASIC isn't the more common solution here. Do these need such specialized processing that FPGAs make economic sense?
- stagger87 9y agoScopes and other digitizers can operate at GHz rates and something like an FPGA can interface those rates (JESD) with other peripherals like memory. (for example)
- gh02t 9y agoScopes and digitizers are actually extremely demanding in terms of throughput, plus they do a lot of specialized processing on the samples. Even mid-range models are using top-grade FPGAs and custom ASICs. Keysight's mid-range scope is capable of 5 gigasamples per second at 8 bit sample depth on 4 channels, that's 20 GB/s of data that needs to be processed, [soft] real time. Regarding cost, these are expensive, complicated instruments. A bottom of the barrel oscilloscope costs $300 and professional grade units are more like $2-3000. The top grade ones can cost half a million dollars ( https://www.keysight.com/en/pcx-x205212/infiniium-z-series-oscilloscopes?nid=-32529.0&cc=US&lc=eng https://www.keysight.com/en/pcx-x205212/infiniium-z-series-o... ).